(19)

(11)

EP 4 277 580 A1

(12)

(43) Date of publication: 22.11.2023 Bulletin 2023/47 (21) Application number: 21831368.2 (22) Date of filing: 20.12.2021

(51) International Patent Classification (IPC):  A61F 2/46(2006.01) (52) Cooperative Patent Classification (CPC): A61F 2/4601; A61F 2002/4627 (86) International application number: PCT/IB2021/062002 (87) International publication number: WO 2022/153115 (21.07.2022 Gazette 2022/29)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 15.01.2021 CH 352021 (71) Applicant: Eggli, Stefan 1723 Pierrafortscha (CH)	(72) Inventors: HÄBERLI, Janosch 3012 Bern (CH) OVERES, Tom 4536 Attiswil (CH) EGGLI, Stefan 1723 Pierrafortscha (CH) (74) Representative: Vesterinen, Jussi Tapio  LUMI IP GmbH Rodtmattstrasse 45 3014 Bern 3014 Bern (CH)